81434038

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{787}}^1$

素因数の和:1204

約数の個数: 32

約数和(自身を含む): 147513600

約数和(自身を除く): 66079562

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 389, 778, 787, 1574, 2723, 5446, 5509, 7391, 11018, 14782, 14953, 29906, 51737, 103474, 104671, 209342, 306143, 612286, 2143001, 4286002, 5816717, 11633434, 40717019, 81434038]

約数ペア:

[(1, 81434038), (2, 40717019), (7, 11633434), (14, 5816717), (19, 4286002), (38, 2143001), (133, 612286), (266, 306143), (389, 209342), (778, 104671), (787, 103474), (1574, 51737), (2723, 29906), (5446, 14953), (5509, 14782), (7391, 11018)]